测试图像的位置: http://images.plurk.com/tn_4134189_bf54fe8e270ce41240d534b5133884ee.gif

我试着在互联网上发现了几个解决方案,但没有工作的解决方案。

我使用下面的代码片断代码:

Url imageUrl = new Url("http://images.plurk.com/tn_4134189_bf54fe8e270ce41240d534b5133884ee.gif");
Bitmap image = BitmapFactory.decodeStream(imageUrl.openStream());

始终得到这个日志:

DEBUG/skia(1441): --- decoder->decode returned false

任何帮助? 感谢。

编辑:

这些图像未能进行解码,也不能在WebView显示。但是如果打开看到一个浏览器。

有帮助吗?

解决方案

尝试此作为临时解决方法:

首先添加以下类:

  public static class PlurkInputStream extends FilterInputStream {

    protected PlurkInputStream(InputStream in) {
        super(in);
    }

    @Override
    public int read(byte[] buffer, int offset, int count)
        throws IOException {
        int ret = super.read(buffer, offset, count);
        for ( int i = 2; i < buffer.length; i++ ) {
            if ( buffer[i - 2] == 0x2c && buffer[i - 1] == 0x05
                && buffer[i] == 0 ) {
                buffer[i - 1] = 0;
            }
        }
        return ret;
    }

}

然后用PlurkInputStream包住原始流:

Bitmap bitmap = BitmapFactory.decodeStream(new PlurkInputStream(originalInputStream));

让我知道如果这能帮助你。

修改

对不起,请尝试以下版本而不是:

        for ( int i = 6; i < buffer.length - 4; i++ ) {
            if ( buffer[i] == 0x2c ) {
                if ( buffer[i + 2] == 0 && buffer[i + 1] > 0
                    && buffer[i + 1] <= 48 ) {
                    buffer[i + 1] = 0;
                }
                if ( buffer[i + 4] == 0 && buffer[i + 3] > 0
                    && buffer[i + 3] <= 48 ) {
                    buffer[i + 3] = 0;
                }
            }
        }

请注意,这不是有效的代码这也不是一个完整的/正确的解决方案。它将为大多数情况下工作,但不是全部。

其他提示

我有同样的问题,部分地固定由这个类:

static class FlushedInputStream extends FilterInputStream {
public FlushedInputStream(InputStream inputStream) {
    super(inputStream);
}

@Override
public long skip(long n) throws IOException {
    long totalBytesSkipped = 0L;
    while (totalBytesSkipped < n) {
        long bytesSkipped = in.skip(n - totalBytesSkipped);
        if (bytesSkipped == 0L) {
              int byte = read();
              if (byte < 0) {
                  break;  // we reached EOF
              } else {
                  bytesSkipped = 1; // we read one byte
              }
       }
        totalBytesSkipped += bytesSkipped;
    }
    return totalBytesSkipped;
}

}

InputStream in = null;
    try {
        in = new java.net.URL(imageUrl).openStream();
        } catch (MalformedURLException e) {
        e.printStackTrace();
        } catch (IOException e) {
        e.printStackTrace();
        }
Bitmap image = BitmapFactory.decodeStream(new FlushedInputStream(in));

这有助于在大多数情况下,但这并不是通用的解决方案。 有关详细参考本错误报告

祝你好运!

我尝试了所有的解决方案,但并没有解决我的问题。一些测试后,Skia的解码器的问题,遇事发生时,很多互联网连接不稳定。对于我,迫使重新下载图像解决了这个问题。

在问题还提出了更多当图像是大尺寸的。

使用环路将需要我至多2重试和图像将被正确地下载。

Bitmap bmp = null;
int retries = 0;
while(bmp == null){
    if (retries == 2){
        break;
    }
    bmp = GetBmpFromURL(String imageURL);
    Log.d(TAG,"Retry...");
    retries++;
}

此应该工作:

URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
connection.disconnect();
input.close();

MYBITMAP包含图像。

这是由于在Android的InputStream的类的错误。 你可以找到一个有效的解决方法,在这里的bug HTTP的描述:// code.google.com/p/android/issues/detail?id=6066

有关存储器的原因,必须器具这样BitmapFactory选项:

BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 4; // might try 8 also

在主下载的位图的功能也许是这样的:

Bitmap downloadBitmap(String url) {

    final HttpClient client = AndroidHttpClient.newInstance("Android");
    final HttpGet getRequest = new HttpGet(url);

    try {
        HttpResponse response = client.execute(getRequest);
        final int statusCode = response.getStatusLine().getStatusCode();
        if (statusCode != HttpStatus.SC_OK) {
            if(DEBUG)Log.w("ImageDownloader", "Error " + statusCode +
                    " while retrieving bitmap from " + url);
            return null;
        }

        final HttpEntity entity = response.getEntity();
        if (entity != null) {
            InputStream inputStream = null;
            try {

                inputStream = entity.getContent();
                BitmapFactory.Options options = new BitmapFactory.Options();
                options.inSampleSize = 4; // might try 8 also
                return BitmapFactory.decodeStream(new FlushedInputStream(inputStream),null,options);

            } finally {
                if (inputStream != null) {
                    inputStream.close();
                }
                entity.consumeContent();
            }
        }
    } catch (IOException e) {
        getRequest.abort();
        if(DEBUG)Log.w(TAG, "I/O error while retrieving bitmap from " + url, e);
    } catch (IllegalStateException e) {
        getRequest.abort();
        if(DEBUG)Log.w(TAG, "Incorrect URL: " + url);
    } catch (Exception e) {
        getRequest.abort();
        if(DEBUG)Log.w(TAG, "Error while retrieving bitmap from " + url, e);
    } finally {
        if ((client instanceof AndroidHttpClient)) {
            ((AndroidHttpClient) client).close();
        }
    }
    return null;
}

也许你必须是工具的AsyncTask是这样的: http://android-developers.blogspot.com/2010/07 /multithreading-for-performance.html

有关我的问题是与类型图像的颜色的:你的图像在颜色CYMK =未在RGB

也许这是不是你的情况,但它可能是,如果你试图解码图像与CMYK色彩空间,而不是RGB色彩。 CMYK图像,如这一个,不被支持的Android,并不会显示,即使在Android的网络浏览器。了解更多关于这个这里

无法与BitmapFactory加载JPEG图像。 decodeFile。返回NULL

尝试这种情况:

HttpGet httpRequest = new HttpGet(url);
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = (HttpResponse) httpclient.execute(httpRequest);
HttpEntity entity = response.getEntity();
BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(entity);
InputStream is = bufferedHttpEntity.getContent();
Drawable d = Drawable.createFromStream(is, "");
//or bitmap
//Bitmap b = BitmapFactory.decodeStream(is);
许可以下: CC-BY-SA归因
不隶属于 StackOverflow
scroll top